CN102767245B - Sound attenuation building material and system - Google Patents

Sound attenuation building material and system Download PDF

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Publication number
CN102767245B
CN102767245B CN201210154074.1A CN201210154074A CN102767245B CN 102767245 B CN102767245 B CN 102767245B CN 201210154074 A CN201210154074 A CN 201210154074A CN 102767245 B CN102767245 B CN 102767245B
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CN
China
Prior art keywords
constructional materials
sound
core matrix
particulate
materials
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN201210154074.1A
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Chinese (zh)
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CN102767245A (en
Inventor
D·L·皮尤
M·D·基普
M·D·里奇斯
W·T·麦卡维尔
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Ashtech Industries LLC
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Ashtech Industries LLC
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Filing date
Publication date
Priority claimed from US12/077,951 external-priority patent/US20090004459A1/en
Application filed by Ashtech Industries LLC filed Critical Ashtech Industries LLC
Publication of CN102767245A publication Critical patent/CN102767245A/en
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Publication of CN102767245B publication Critical patent/CN102767245B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/049Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres completely or partially of insulating material, e.g. cellular concrete or foamed plaster
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B1/86Sound-absorbing elements slab-shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8414Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • E04B2001/8419Acoustical cones or the like, e.g. for anechoic chambers
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8457Solid slabs or blocks
    • E04B2001/8461Solid slabs or blocks layered

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to a sound attenuation building material and a system. The building material is configured to enhance sound attenuation and reduction in dB across a walled partition. The building material comprises a facing membrane and a core matrix disposed about the facing membrane, wherein the core matrix comprises a plurality of microparticles and a binder solution configured to support the microparticles. The building material comprises at least a substantially exposed face, wherein a side of the core matrix is at least partially exposed to increase sound attenuation by reducing reflections from sound waves impinging on the building material as compared to a control building material lacking an exposed face. Two building materials may be used in conjunction with one another about a building structure, such as a stud wall, to create and define a sound trap that functions to reduce sound transmission across the partition formed by the stud wall and building materials.

Description

Sound attenutation building material and system
The application is that application number is dividing an application of 200880129305.5 patent application, and the applying date of original application is on September 25th, 2008, and denomination of invention is " sound attenutation building material and system ".
Related application
The application requires the U.S. Patent application No.12/077 submitting on March 21st, 2008,951 rights and interests, this U.S. Patent application requires the U.S. Provisional Patent Application No.60/919 submitting on March 21st, 2007,509, the U.S. Provisional Patent Application No.60/961 submitting on July 17th, 2007,130 and the U.S. Provisional Patent Application No.61/002 that submits on November 7th, 2007,367 rights and interests, described application is all incorporated to herein as a reference.The application also requires the U.S. Provisional Patent Application No.61/081 submitting on July 18th, 2008, and 949 and the U.S. Provisional Patent Application No.61/081 that submits on July 18th, 2008,953 rights and interests.
Technical field
The present invention relates to constructional materials, and relate more specifically to comprise wallboard and other constructional materials of acoustic attenuation characteristic.
Background technology
Multiple building materials has been considered acoustic attenuation or absorption characteristic when design, because conventionally wish to minimize or at least reduce the transaudient amount through separator.About building structure, think that the constructional materials such as wallboard, interlayer and paint is to contribute to reduce transaudient material.
Wallboard is a kind of Applied Materials or constructional materials of routine, and it has many different types, design and size.Wallboard can be configured with many different characteristics or feature, for example different sound absorptions, heat transfer and/or fire performance.Up to now, the wallboard of common type is dry wall plate or gypsum plank.Dry wall plate comprises gypsum inner core, and this gypsum inner core is the calcium sulfate (CaSO of half water form 4. 1/ 2h 2o), be arranged between two facing barrier films that are generally paper or fiberglass packing.Dry wall plate can comprise that various additives and filler are to change its characteristic.
The thickness of the dry wall plate the most generally using is 1/2nd inches, but thickness range can be from 1/4th inches (6.35mm) to one inch (25mm).For sound insulation or fire prevention, sometimes two-layer dry wall plate is mutually squarely and arranges.Dry wall plate is that 3/8ths inches of plates provide 0.32 thermal resistance or R value, for the plate of half inch provides 0.45 R value, is that 5/8ths inches of plates provide 0.56 R value, for inch board provides 0.83 R value.Except R value increases, thicker dry wall plate has slightly high transaudient grade (STC) rank.
STC is a part of ASTM International Classification E413 and E90, be a kind of widely used for the identification of constructional materials the standard to the attenuation degree of airborne sound.STC number is derived by the acoustic attenuation value recording under 16 standard frequencies from 125Hz to 4000Hz.Then these being transmitted to loss value is plotted on sound pressure level figure and by result curve and standard basis outline line contrast.Acoustic engineers fits to these values one suitable TL(or transmits loss) curve to be to determine STC rank.Can think that STC is that the available noise decibel of wallboard or other separator declines.DB is with logarithm system, wherein when the volume sound that Shi Rener can perception 10dB that roughly reduces by half reduces.Reducing therefore, any dB(magnitude) is all clearly.For identical material with dB(magnitude) reduce to depend on transaudient frequency.STC rank is higher, and dividing plate is just more effective aspect the transmission that reduces modal audio frequency.
In house or building, common interior wall has the relative multi-disc dry wall plate being arranged on column frame or stud wall/dagger wall.In this arrangement, in the situation that dry wall plate plate thickness is 1/2 inch, the STC of interior wall is about 33.Adding glass fiber interlayer has certain help, but only STC is increased to 36-39 according to the type of interlayer and quality and column and double-screw bolt spacing.Because wallboard is comprised of several plates or panel conventionally, so any other seam or gap in the crack between panel or gap or wall construction are called " side path ", they more freely transmit permission sound, therefore cause lower overall STC rank.Therefore, key is to eliminate or reduce as much as possible all potential side paths.
Similarly, outdoor-indoor transmission grade (OITC) is widely used for showing transaudient other standard of level between the exterior space and the interior space.OITC test is considered to be low to moderate the frequency of 80Hz and more to lay particular emphasis on lower frequency conventionally.
Summary of the invention
Therefore, the invention provides sound attenutation building material, the system and method for attenuate sound.On the one hand, for example, provide a kind of sound attenutation building material.This constructional materials can comprise the core matrix (core matrix) being arranged on finish material, wherein this core matrix comprises a large amount of particulates and the adhesive that is configured to support particulates, and thereby a side of its SMIS matrix expose to form the face at least substantially exposing of constructional materials, with by comparing and reduce the sound wave reflection impacting on constructional materials and increase acoustic attenuation with (control) constructional materials that contrasts that lacks exposure.This constructional materials also can comprise the acoustic window material in the exposure that is arranged on constructional materials.This acoustic window material can comprise screen cloth or Web materials.In addition, in some aspects, constructional materials also can comprise the rigid material being associated with core matrix.A particular aspects, this rigid material is arranged in core matrix.
Imagine in core matrix of the present invention and comprise various particulate.On the one hand, microballon is hollow.On the other hand, microballon is filled with inert gas.Again on the other hand, microballon is made by flying dust.
The exposure of constructional materials can comprise various configurations, from opposite planar shape configuration to obvious non-planar shaped configuration.For example, on the one hand, the mask substantially exposing has a plurality of protuberances that extend from core matrix.This protuberance can change according to the desired characteristic of constructional materials, and still, on the one hand, described protuberance separates with predetermined pattern.
It is a kind of for using the system of constructional materials attenuate sound that the present invention also provides.This system can comprise the first constructional materials, the second constructional materials, the second constructional materials is arranged in the orientation that is arranged essentially parallel to the first constructional materials and makes the first constructional materials and the second constructional materials separate certain distance to form sound trap space, and wherein the first constructional materials comprises the core matrix being arranged on finish material.Core matrix can comprise a large amount of particulates, and the adhesive that is configured to support particulates, thereby wherein the first constructional materials core matrix expose to form the face at least substantially exposing of the first constructional materials towards a side of the second constructional materials, with by comparing and reduce the sound wave reflection impacting on the first constructional materials and increase acoustic attenuation with the constructional materials that contrasts that lacks exposure.One more particularly aspect, building structure can be positioned at sound trap space.Another more particularly aspect, the first constructional materials is supported on around the first side of building structure/near and the second constructional materials is supported on around the second side of building structure.Again another more particularly aspect, the first constructional materials, the second constructional materials and building structure form partition wall.In some aspects, can in the sound trap between the first constructional materials and the second constructional materials, interlayer/isolated material be set.
The many configurations for the second constructional materials have been imagined.For example, on the one hand, the second constructional materials comprises the core matrix being arranged on finish material, and its SMIS matrix comprises a large amount of microballons and is configured to support the adhesive of microballon.One special aspect, the second constructional materials core matrix exposes and forms the face at least substantially exposing of the second constructional materials towards a side of the first constructional materials, with by comparing and reduce the sound wave reflection impacting on the second constructional materials and increase acoustic attenuation with the constructional materials that contrasts that lacks exposure.Alternatively, the second constructional materials core matrix can be covered substantially towards a side of the first constructional materials.
The present invention also provides a kind of method of using constructional materials attenuate sound.This method can comprise to be introduced sound wave in sound trap as described herein, thereby sound wave is attenuated by least one of passing in the first constructional materials core matrix and the second constructional materials core matrix at least in part.Another aspect, by passing the first constructional materials core matrix and the second constructional materials core matrix at least in part, the two is attenuated sound wave.Again on the other hand, sound wave is owing to reducing and being attenuated at least in part with the sound wave reflection of constructional materials phase Charpy in the exposure of the first constructional materials that contrast that lacks exposure.
Accompanying drawing explanation
The present invention becomes completely apparent by the description from below in conjunction with accompanying drawing and claims.Should be understood that, these accompanying drawings only illustrate exemplary embodiment of the present invention, therefore should not think that they have limited scope of the present invention.Can easily understand, as large volume description in the accompanying drawings can be arranged and designed into various structure with the member of the present invention illustrating.But, will be by using accompanying drawing more concrete and describe and illustrate the present invention in detail, in the accompanying drawings:
Fig. 1 illustrates according to the detailed perspective view of the constructional materials of one exemplary embodiment of the present invention;
Fig. 2 illustrates according to the detailed perspective view of the constructional materials of another exemplary embodiment of the present invention;
It is that its mid-board is formed by relative exemplary constructional materials, and its mid-board forms and limit a sound trap according to the local side cross-sectional view of the exemplary acoustic attenuation system of the partition wall of an exemplary embodiment formation that Fig. 3 illustrates form;
It is that its mid-board is formed by relative exemplary constructional materials, and its mid-board forms and limit a sound trap according to the local side cross-sectional view of the exemplary acoustic attenuation system of the partition wall of another exemplary embodiment formation that Fig. 4 illustrates form;
It is that its mid-board is formed by relative exemplary constructional materials, and its mid-board forms and limit a sound trap according to the local side cross-sectional view of the exemplary acoustic attenuation system of the partition wall of another exemplary embodiment formation that Fig. 5 illustrates form;
Fig. 6 illustrates according to the detailed perspective view of the wallboard building material of one exemplary embodiment of the present invention, and wherein constructional materials comprises core matrix based on particulate, is formed on many projections (multi-elevational) surface configuration in a surface of core matrix and is arranged in the decoration panel on the apparent surface of core matrix;
Fig. 7-A illustrates according to the detailed perspective view of the wallboard building material of another exemplary embodiment of the present invention, and wherein constructional materials comprises core matrix based on particulate, arranges or be interposed in the intramatrical lath of core (lath), is formed on the many protrusion surfaces configuration in a surface of core matrix and is arranged in the decoration panel on the apparent surface of core matrix;
Fig. 7-B illustrates the detail drawing of the constructional materials of Fig. 7-A;
Fig. 8 illustrates according to the top view of the constructional materials of an exemplary embodiment more of the present invention, and wherein constructional materials comprises pillow (patterned pillow-like) many protrusion surfaces configuration of the formation pattern in the exposed surface that is formed on core matrix;
Fig. 9 illustrates the cross sectional side view of the constructional materials of Fig. 8;
Figure 10 illustrates the section end view of the constructional materials of Fig. 8;
Figure 11 illustrates the detailed side view of the constructional materials of Fig. 6;
Figure 12 illustrates according to detailed side view another exemplary embodiment, that have the constructional materials of many protrusion surfaces configuration;
Figure 13 illustrates according to detailed side view another exemplary embodiment, that have the constructional materials of many protrusion surfaces configuration;
Figure 14 illustrates according to the cross sectional side view of the constructional materials of another exemplary embodiment, and wherein constructional materials comprises cavity or the cavity that strategically forms and locate in a large number; And
Figure 15 illustrates the constructional materials that is structured as the ornament materials in structural outer.
The specific embodiment
Below to detailed description of illustrative embodiments of the present invention with reference to accompanying drawing, accompanying drawing forms a part for described explanation and is illustrated and can be implemented exemplary embodiment of the present invention by diagram.Although enough described these exemplary embodiments in detail to enable those skilled in the art to implement the present invention, but should be understood that, also can realize other embodiment and can under the prerequisite that does not deviate from the spirit and scope of the present invention, to the present invention, make various changes.Therefore, below the more detailed description of embodiments of the invention is not intended to restriction according to the scope of the present invention of claim, and just unrestriced object proposes for explanation, thereby describe feature of the present invention and feature, illustrate optimal operation mode of the present invention and be enough to enable those skilled in the art to implement the present invention.Therefore, scope of the present invention is only defined by the following claims.
In manual of the present invention and claim, according to use corresponding term to give a definition.
" one " and " being somebody's turn to do/described " that mentions singulative comprises plural object, unless explicitly pointed out and be not like this in context.Therefore, for example, mention " wallboard " and comprise one or more these type of wallboards, and mention " this adhesive ", comprise one or more this type of adhesives.
For the illustrated claim of description and interpretation, various dissimilar product or the material that at this term used " constructional materials ", should be understood to be combined with particulate (for example microballon) matrix, described particulate utilizes one or more compositions to be adhered to or is bonded together---such as certain class adhesive---.This constructional materials can comprise other additive, composition or component, for example hardener, blowing agent or surfactant, water soluble (CO) polymers and other.This constructional materials can comprise many different types, embodiment etc., and can be used in many different application.
As used in this, term " particulate " is interpreted as any natural formation, manufacture or synthetic particle, and this particle has external surface, has in some cases the inside of hollow.Conventionally, particulate comprises having the spherical of hollow inside or spherical geometry substantially as mentioned herein, is called microballon.The particulate of other type can comprise the particulate that those are made by timber, ground rubber, the plastics that grind, sawdust etc.
As used in this, term " core matrix " is interpreted as particulate and in order to form the combination of other composition of the support matrix of constructional materials.Particulate can with the combinations such as one or more adhesives, additive, hardener.
Term " many projections " should be understood to, for describing at least one surface of the core matrix of constructional materials, wherein in this surface, be formed with a series of peak and paddy (or protuberance and depression) so that the integral surface configuration with the different surfaces that is positioned at differing heights and/or direction to be provided.The surface configuration of many projections can form arbitrarily or form pattern.In addition, many protrusion surfaces can be limited by the outstanding and recessed composition of any or geometrical figuration.
As used in this, term " substantially " refers to the degree that completes or approached of action, feature, characteristic, state, structure, article or result.For example, the object of " substantially " sealing refers to that object is sealed completely or approaches sealing completely.With the deflection definitely completing accurately can depend in some cases specific context by tolerance level.But generally speaking, approaching of completing will have and definitely and completely complete identical total result.When implication for negative, the use of " substantially " is used for representing completely or approaches lacking action, feature, characteristic, state, structure, article or result completely equally.For example, the composition of " there is no " particle will lack particle completely, or approach and to lack particle so that effect completely and to lack Particle Phase completely together.In other words, the composition of " there is no " component or element in fact still can contain this article, only otherwise have its measurable effect.
As used in this, term " about " be used for by make a set-point can " a little more than " or " a little less than " end points of number range makes this end points have flexibility.
As used in this, for convenient, can in a common list, list a large amount of entry/products, structural member, element and/or material.Yet these lists should be interpreted as: each parts of list are considered as separately separated, unique parts.Therefore,, without explanation on the contrary in the situation that, the separate part in this type of list should be only owing to being listed in the actual equivalent of any other parts that are interpreted as same list in public group.
Concentration, amount and other numeric data can be expressed or propose with the form of scope at this.Should be understood that, this type of range format is just in order conveniently and concisely to be used, therefore should be interpreted as neatly not only comprising the numerical value of clearly listing as range limit, and comprise all independent numerical value or the subrange being included within the scope of this, treat as and clearly listed each numerical value and subrange.For example, number range " approximately 1 to approximately 5 " should be interpreted as not only comprising the value approximately 1 to approximately 5 of clearly listing, and is included in independent value and the subrange in pointed scope.Therefore, this number range comprise independent value as 2,3 and 4 and subrange as from 1 to 3, from 2 to 4 and from 3 to 5 etc., and independent 1,2,3,4 and 5.This same principle is applicable to enumerate a numerical value as minimum value or peaked scope.In addition,, no matter the amplitude of described scope and feature how, this type of explanation all should be suitable for.
The present invention proposes the Applied Materials that a large amount of particulates of multiple use are constructed.The present invention also propose multiple for the production of or manufacture the method for different Applied Materials and the various application of this type of Applied Materials.Applied Materials disclosed herein, relevant wallboard embodiment and relevant manufacture are compared and are had several significant advantages with the method and Applied Materials of the prior art of using this type of Applied Materials---as wallboard product, especially dry wall plate---, and some of them advantage is pointed out and spreads all in following more detailed description at this.The first, this wallboard building material provides the thermodynamic property having improved.For example, on the one hand, this wallboard building material has much bigger heat transfer impedance.The second, on the other hand, this wallboard building material has the acoustical behavior of raising.For example, wallboard building material disclosed herein has obviously better transaudient grade (STC) rank.The 3rd, wallboard building material of the present invention is firmer and lighter.These advantages also limit never in any form.In addition, one skilled in the art will understand that when enforcement is of the present invention and can realize other advantage that is different from the advantage of specifically listing at this.
Applied Materials disclosed herein is strong to various application adaptability.This Applied Materials is due to its composition or composition and can be controlled to realize different performance characteristics according to desired use.For example, can control the porosity of particulate and density to realize the level of any hope.This is in many application---for example, when needing sound insulation or heat insulation Applied Materials---in be useful.
For example, on the one hand, the invention provides a kind of with conventional dry wall plate and compare and there is the transaudient rating of raising and the constructional materials of other beneficial characteristics (for example, high heat transfer impedance).This constructional materials can be used as shear panels or as wallboard panel structure, include core matrix, this core matrix comprises a large amount of microballons and at least one adhesive or binder solution, described microballon hollow or solid, inertia, lightweight, be natural formation or synthetic, this adhesive or binder solution are for example configured to, in order to microballon (is supported, bonding or adhere to) together, and form a large amount of cavities that spread all over core matrix.Particulate thereby be dispersed and be suspended in a composition, said composition at least comprises adhesive, may also comprise other composition such as surfactant or blowing agent.Adhesive can comprise the mixture of solution of inorganic binder, organic or latex bonded agent solution or solution of inorganic binder and organic bond solution.Core matrix also can comprise various additives, filler, reinforcement material etc.Depend on selected composition, this Applied Materials can be configured to also have specific physical characteristic and Performance Characteristics except acoustic attenuation characteristic, for example intensity, flexibility, hardness, and thermodynamic property, fire performance etc.
In the situation of wallboard panel, core matrix can be arranged in around the finish material in a side or around a face, the opposite side of wallboard panel or face are capped, or capped at least partly, coarse, the porous surface that with composition and the structure providing by core matrix, limit.In other words, this constructional materials is configured with the core matrix of at least part of exposure.In the situation of shear panels, the mode that core matrix can opposite side exposes is arranged in around finish material.Finish material can be any useful material, as paper, cloth, polymer, metal etc.Be described in more detail below each composition of sound attenutation building material of the present invention and system, and further feature and system.
At present found that the exposed surface of core matrix has greatly improved the acoustic attenuation characteristic of constructional materials.The sound wave of impact on exposed surface compares with the constructional materials that lacks this exposed surface the acoustical reflection that is minimizing.As a result, the material that sound wave is included the core matrix of constructional materials more effectively absorbs and decays.
With reference to Fig. 1, show according to the detailed perspective view of the constructional materials of illustrative aspects formation according to the present invention.As mentioned above, constructional materials comprises that exposure or side are to provide surface coarse, porous.As shown in the figure, constructional materials 10 is for being similar to the panel-form of wallboard panel, have wide approximately 4 feet, be about the size of 8 feet, this size is identical with the wallboard product of most conventional.Certainly, also can consider to be different from 4 feet of constructional materials sizes of taking advantage of 8 feet, and different thickness.Near shown constructional materials 10 comprises core matrix 14, and this core matrix is arranged in single decoration panel or finish coat---being finish material 34---.The exposed side 18 permission sound of core matrix 14 are decayed by particulate and adhesive, and acoustical reflection is stamped in the situation of finish material few than the equal coating in the both sides of constructional materials 10.On the one hand, in the time of on constructional materials being installed or be assembled to such as the works of stud wall, the exposed side 18 of core matrix 14 can be towards inner side, and facing barrier film 34 is towards outside.On the other hand, when constructional materials is installed or is assembled on works, the exposed side 18 of core matrix 14 can be towards outside, and facing barrier film 34 is towards inner side.
Core matrix 14 is comprised of a large amount of particulates and at least one adhesive, and wherein particulate is at least bonding or adhere to each other and be bonded together in some cases to form the core matrix structure that is wherein limited with a large amount of cavities by described one or more adhesives.Cavity when in position by adhesive by particulate point point therebetween contact and form.When being bonded together, particulate provides the more coarse surface of situation that obviously comprises other facing barrier film than constructional materials.Surperficial effect coarse, porous be set be by can be when sound be attempted through core matrix absorption sound and significantly improve the acoustic attenuation characteristic of constructional materials better.
Imagine as used herein particulate and can comprise that many dissimilar, sizes, shape, one-tenth grade.On the one hand, particulate can be microballon.On the one hand, the particulate being used in constructional materials of the present invention can have the average-size of scope between approximately 10 microns and approximately 1500 microns.On the other hand, particulate can have the average-size of scope between approximately 10 microns and approximately 1000 microns.Again on the other hand, particulate can have the average-size of scope between approximately 200 microns and approximately 800 microns.Again on the other hand, particulate can have scope from the average-size of approximately 300 microns to approximately 600 microns.Another aspect, particulate can have scope from the average-size of approximately 350 microns to approximately 450 microns.In addition, particulate can have about 0.4g/ml to the bulk density of about 0.6g/ml, thus the product providing than conventional constructional materials, as the dry wall plate based on gypsum or oriented structure chipboard (OSB) light.The performance characteristics that therefore size of particulate can be depending on application and wish.Yet particulate should be excessive so that be caused flowing away or losing efficacy of any adhesive disposed thereon.
The size of particulate also works the infiltrative effect that affects constructional materials.Particulate should be compatible with any adhesive, additive and/or decoration panel.In the situation of hollow minute particle, the outer casing thickness of particulate can be remained on to minimum value, as long as particulate keeps structural integrity as wished in core host material.On the one hand, particulate can have approximately 30% the outer casing thickness that is less than mean particle dia.For aspheric particulate, can the effective diameter based on particle calculate the diameter of particle, wherein utilize the gross area of particle cross section and make this area equal an area of a circle and determine diameter from this value.Another aspect, outer casing thickness can be less than approximately 20% of mean particle dia.
An illustrative aspects, particulate can comprise that geometry is essentially the glass particle of spherical hollow, inertia, lightweight, natural formation.A kind of microballon of particular type is with trade mark Extendospheres tMsell, it is by Sphere One Corporation produce and market.In some aspects, hollow inside can be used for alleviating the weight of constructional materials valuably, and good isolation characteristic is provided.On the one hand, particulate can be hollow, inertia, the glass microballoon from the natural formation of flying dust accessory substance acquisition.This type of microballon is often called and floats pearl.Floating pearl can and be further processed with other accessory substance component separation of existing in flying dust, for example, be cleaned and be separated in the size range of hope.Float pearl and mainly by silica (silica) and alumina (alumina), formed, and can there is the hollow inside that is full of air and/or other gas.Float pearl and have the characteristic of many hope, for example 3000psi is to the compressive resistance between 5000psi and low-gravity, and characteristic that can withstand high temperatures (more than 1800 °F).Although float the overall shape of pearl, be essentially spherical, many is not real spherical, because many crushed or comprise the unsmooth surface causing due to extra silica and/or alumina.
As mentioned above, particulate or microballon can be drawn together a certain amount of air or other gas at hollow Logistics insourcing.Possible in the situation that, can select alternatively the composition of gaseous material in microballon to the Enhancement feature of Applied Materials is provided.For example, hollow inside can comprise rare gas or other known separation gas, if argon gas is to improve the isolation characteristic of whole Applied Materials.
On the other hand, particulate can comprise hollow, the spherical structure of being manufactured by synthetic materials.Adopting an advantage of synthetic materials is the uniformity between microballon, thus make their performance and the performance of formed core matrix and constructional materials more measurable.But in some cases, these advantages may be not obviously to confirm its purposes, because it is conventionally very expensive to manufacture synthetic microballon.With the microballon of natural formation, replace synthetic microballon to form constructional materials and can be depending on several different factors, intended application for example, and/or Performance Characteristics and the feature of wishing.In some applications, the microballon of natural formation may be preferred, and in other application, may more wish synthesis type.
Core host material of the present invention can comprise according to the expected characteristics of the Applied Materials obtaining the particulate of any amount.On the one hand, for example, the amount of the particulate existing in core matrix can be between approximately 25% and about 60%(of total core matrix by weight with the form of wet mixture) between.On the other hand, the amount that particulate exists can between approximately 30% and about 40%(by weight) between.Also can imagine other amount, particularly in core matrix, comprise those aspects of other additive or filler, for example perlite, or hardener, for example C class flying dust.It should be pointed out that and can utilize the flying dust of any type as packing material and/or alternatively as floating Zhu Yuan.On the one hand, C class flying dust can be a source or unique source of microballon.The amount of the C class flying dust comprising in core matrix on the one hand, can be at about 0.5wt% in the scope of about 50wt%.On the other hand, C class flying dust can exist with synthetic microballon combination of manufacturing, and wherein the ratio of C class flying dust and synthetic microballon is that about 1:15 is to about 15:1.Again on the other hand, the amount of C class flying dust can be less than approximately 1/3 of microballon amount.The C class flying dust using can comprise the aluminosilicate calcium salt (calcium aluminate silicate) that is greater than about 80wt% alternatively, and the lime that is less than about 2wt%.
As mentioned above, the present invention also comprises one or more adhesives that can operate that particulate is linked together and be conducive to form multi-hole center matrix.Particulate can be bonding by any way, comprises physical bond structure, chemical adhesion particulate, merges the border of particulate etc.One special aspect, the mode that particulate can physical bond is bonding, as particulate kept together in the matrix of adhesive, wherein adhesive adheres to or fixing particulate physically, but can not form covalent bond or other chemical bond with microballon.Adhesive can adhere to each other microballon, wherein adhesive if water-based adhesive allow to be dried, or non-water-based adhesive allows in hot environment to solidify if.On the one hand, can make adhesive crosslinked, wherein the effect of adhesive is particulate is combined and improve the water proofing property of constructional materials.
The ratio of adhesive and particulate can change according to the constructional materials that will form.The ratio of adhesive and particulate is higher makes the situation that constructional materials is less than this ratio firmer and closely knit.The less constructional materials porous more that makes of ratio of adhesive and particulate.
Imagining many adhesive materials is used in each aspect of the present invention.It should be noted in the discussion above that any adhesive that can in core matrix, a large amount of particulates be bonded together all should be considered within the scope of the invention.Can select different adhesives as the part of composition to be conducive to the composition of constructional materials, and contribute to provide the constructional materials with particular physical characteristics and Performance Characteristics.Can imagine and use water-based adhesive and non-water-based adhesive.The example of common adhesive classification is including, but not limited to thermoplastic, epoxy resin, vulcanizing agent, urethanes, thermosetting plastics, silicones etc.
In one exemplary embodiment, adhesive comprises that this organic bond is such as VA or ethylene vinyl acetate with the inorganic bond of organic bond combination, as being the silicate of soda of a kind of form or another kind of form.The variable-scale of these adhesives.On the one hand, the ratio of inorganic bond and organic bond can be about 7:1 to about 10:1.More generally, at hygrometric state, (adhesive comprises a certain amount of water to inorganic bond, or mix with a certain amount of water) the lower amount existing by weight between the gross weight of core matrix 50% and 60% between (or about 20wt% is to the dry inorganic bond of about 36wt%), the amount that organic bond exists under hygrometric state by weight between the gross weight of core matrix 5% to 15% between (or about 2wt% extremely the dry organic bond of about 6wt%).Listed amount can be based on pure adhesive material form (weight percent in described in the text whole core matrix of adhesive is reduced between 40% and 60%), for example, based on pure silicate of soda, or can be based on comprising optional water, similarly chemical species is as the binder combination of silicate etc. and other additive.As a non-limiting example, the sodium silicate binder solution that business sells comprises that about 35wt% is to the silicate of soda in the solution of 40wt%.In addition can adopt, the inorganic and/or organic bond of more than one types simultaneously.
According to the desired characteristic of the Applied Materials obtaining, imagination forms the Multiple components of the material of core matrix.In a particular embodiment, core base composition can comprise 400g to the microballon between 600g, and this microballon mixes to the ethylene vinyl acetate between 100g to the sodium silicate binder solution between 800g and 60g with 600g.Certainly, according to other scope of application scenario, be also possible.For example, may wish 200g to the microballon between 800g, to mix, mix to the EVAc between 180g with 20g with 300g to the silicate of soda between 1500g or other adhesive.Also each composition that can imagine various formulas has other ratio and scope.In addition, can use more than a kind of organic bond, also can use more than a kind of inorganic bond.
In a concrete example, the amount that solution of inorganic binder exists in wet mixture be by weight core matrix gross weight approximately 55.5%, wherein this binder solution comprises silicate of soda and water.More specifically, the amount of the silicate of soda that solution of inorganic binder comprises is by weight between approximately 40% and approximately between 60%, and the amount of water is by weight between approximately 40% and approximately between 60%.In many cases, solution of inorganic binder comprises that ratio is silicate of soda and the water of 1:1.Silicate of soda can provide solution by premix and with liquid form, or silicate of soda can be powder type and mix with water subsequently.
On the one hand, the amount that latex or organic bond exist in wet mixture is about 7.4% of core matrix gross weight by weight, and comprises (EVA) emulsion of ethylene polyvinyl acetate (ethylene polyvinyl acetate).Latex adhesive is conducive to form flexible porous combination thing, and said composition forms the core matrix of wallboard subsequently.A particular example of the latex adhesive using at trade mark Airflex(is for example, Airflex 420) the lower ethylene vinyl acetate (water-based adhesive) of selling, Qi You Airproducts company produce and market.This special adhesive can be used to promote flowing and plastic formation of core matrix, and flexible or semirigid composition is provided.Latex adhesive can be liquid form with water premixed.Latex adhesive comprises its amount approximately 40% EVA and its amount water of approximately 60% by weight by weight.On the one hand, the scope of gross weight that latex adhesive accounts for wet mixture SMIS matrix is for from about 2.5wt% to about 30wt%.Another aspect, the scope of latex adhesive can be about 5wt% to about 20wt%.The non-limiting example of latex adhesive comprises product (specifically comprising 323,401,420,426), the product (being specially 154s, 163s) that UCAR produces, the bonding adhesive of routine and product (comprising XX210) and their mixture and the composition that paste, Vinac produce that Airflex produces.
In the formula of core matrix, can comprise water-soluble polymer.This water-soluble polymer can be added to core base composition, and this core base composition has been dissolved in water or has been dried forms.The function of water-soluble polymer is with acting on any surfactant of existing in mixture or the stabilizing agent of blowing agent.Particularly, water-soluble polymer contributes to stable composition until adhesive solidifies or be crosslinked.The nonrestrictive example that can be included in the water-soluble polymer in this formula comprises the water-soluble polymer that Airflex sells, for example PEO (as WSR 301).Water-soluble polymer also can be used as thickener and anti-sealing flows out from mixture during core matrix-forming.This base polymer can be used for controlling rigidity, flexibility, tearing toughness and other physical characteristic of constructional materials, and stablizes any surfactant (if present).In certain embodiments, may wish to eliminate or at least significantly reduce the amount of organic principle in core base composition.In the situation that wish that constructional materials comprises that the fire performance of further enhancing is especially true.Therefore the amount that is retained in the organic principle in core base composition can be depending on concrete application.
As mentioned above, and depend on used type, adhesive can only solidify and not be cross-linked, or crosslinkable.By making adhesive crosslinked, between adhesive and microballon, form more by force, more lasting physical connection.Equally, the present invention imagines with one or more measures and effectively makes adhesive crosslinked.In one exemplary embodiment, can carry out cross-linked binder by the temperature of adhesive being brought up to a proper temperature in a reasonable time section, thereby realize polymerization and combination.This can utilize conventional radiation heating method to complete, or also can utilize continuous action or complete with the microwave of different interval actions and the microwave of varying strength.Use microwave obviously faster, and cost is lower.In addition, using the crosslinked effect of microwave is to produce firmer constructional materials, because increased the amount of actual crosslinked adhesive.In addition, the concrete adhesive according to used, can adopt chemical cross-linking agent.This type of chemical cross-linking agent is well-known in the art.
Compare with the constructional materials with uncrosslinked composition, crosslinked in constructional materials has significant advantage.For example, crosslinked in the situation that, adhesive is firmer, and they can not absorb water easily, and the connection between microballon is stronger.In addition, As time goes on constructional materials weakens less conventionally.Those skilled in the art will appreciate that other advantage.But, it should be noted in the discussion above that to exist and wherein do not wish the crosslinked and wherein preferably application of not bonding composition.
The present invention also imagines and utilizes surfactant or blowing agent, and it mixes to realize with adhesive and microballon and has more low-density constructional materials.About foaming process, once them just can be beaten or stir to each batching combination so that air is introduced in mixture, be then dried.Can utilize mechanical agitation or compressed air by air physical introduce in mixture and produce foaming process.Compare with the composition of nothing foaming, foaming process causes particulate to be supported on each other more separated position effectively.In the situation that there is foam, particle suspension also therefore can be dry with the configuration more disperseing.On the other hand, because suspending, the microballon that exists blowing agent to cause also can be used to guarantee that core base composition has higher flowable or can pumping and formability.Suitable surfactant or the example of blowing agent include but not limited to that anion foaming agent is as Steol FS406 or Bio-terge AS40, cation blowing agent and nonionic blowing agent etc.
As a special example, core host material can comprise particulate (wherein the size of particulate is between approximately 10 microns and approximately 1000 microns) from about 25wt% to about 60wt%, silicate of soda from about 20wt% to approximately 36% based on wet formula and from the about 5wt% vinylacetate of about 15wt% extremely.On September 25th, 2008 submit to and be entitled as the relevant common unsettled U.S. Provisional Patent Application No._____ of " Wallboard Materials Incorporating a Microparticle Matrix(is in conjunction with the wall board material of matrix of microparticles) " (the reel number No.2600-32683.NP.CIP2 of agency) and the relevant common unsettled U.S. Provisional Patent Application No._____ that submits on September 25th, 2008 and be entitled as " Shear Panel Building Material(shear panels constructional materials) " (the reel number No.2600-32683.NP.CIP3 of agency) in the more details relevant with wallboard building material have been described, described application is all incorporated to herein as a reference.
Finish material can comprise many dissimilar materials or have the combination of the material of different qualities.An illustrative aspects, finish material comprises paper material, and it is similar in various wallboard product as above---as dry wall plate or be incorporated to the application's wallboard as a reference---upper existing paper material.In another illustrative aspects, finish material can be cloth, polymer or metal or metal alloy.
With reference to Fig. 2, show the constructional materials that another exemplary embodiment according to the present invention forms.Constructional materials 110 is in many aspects to above-mentioned similar with the constructional materials 10 shown in Fig. 1.But constructional materials 110 comprises netted barrier film 154, it is arranged in around the exposed side 118 of core matrix 114, relative with facing barrier film 134.Netted barrier film 154 comprises a plurality of cross portions that form a large amount of grid-like openings.Netted barrier film 154 is for providing support and stability to core matrix 114 similarly with facing barrier film 134, but still a sizable part that leaves the core matrix 114 being exposed in this side is to maintain the surface of coarse, the porous of constructional materials 110.Netted barrier film 154 can be many dissimilar materials, and grid-like opening can have many different sizes and configuration.
On the one hand, netted barrier film 154 can comprise glass fiber or plastic wire or Web materials.The Web materials of this reinforcement provides flexural strength for constructional materials 110, and in the side of particulate at constructional materials 110, exposes to reach further support particulates when absorbing the specific purpose that sound wave and damped vibration received and dispersed sound.According to concrete application and needs, netted barrier film 154 can for example, be made by glass, plastics (, extrusion plastic) or other material.Netted barrier film 154 can be similar to facing barrier film 134 mode or by any other method as known in the art, be bonded in core matrix 114.
A remarkable advantage of comparing with conventional products is the ability of constructional materials decay of the present invention or absorption sound.Found that the transaudient rating of constructional materials (thickness is 1/2 inch) forming for the mode to similar shown in Fig. 1 and Fig. 2 is between 40 and 60, depended on the composition of core matrix, the thickness of wallboard panel and whether have reinforcement material.Thickness is also that the conventional dry wall plate of 1/2 inch has approximately 33 STC rank.During the constructional materials of the embodiment in test based on shown in mentioned above, Fig. 1 and Fig. 2, discovery can reach the sound absorption of .89 ± .10 left and right.In addition,, under 3000Hz, reducing noise is between 55dB and 65dB.At 2000Hz, reducing noise is between 35dB and 45dB.At 1000Hz, reducing noise is between 10dB and 20dB.By contrast, dry wall plate is 40dB at the reducing noise of 3000Hz; Reducing noise at 2000Hz is 28dB; Reducing noise at 1000Hz is 3dB.Can find out, this constructional materials is obviously better aspect sound absorption.
Except the acoustic attenuation characteristic of its improvement or raising, constructional materials of the present invention provides many additional improved characteristic and features with conventional constructional materials as dry wall plate, gypsum plank, OSB compare.For example, constructional materials of the present invention has than the significantly lower heat transmission of conventional constructional materials.For example, in the constructional materials shown in above-mentioned and Fig. 1 and Fig. 2, can realize the temperature gradient of 400 ℃.In a special test, a side of constructional materials of the present invention is heated to 100 ℃, does not have obvious intensification after 2 hours on opposite side.This temperature gradient can change because of the composition XOR of composition, such as the ratio of microballon and adhesive, the type of adhesive of using, the existence of reinforcement material etc. are as described herein.Therefore can find out, constructional materials of the present invention shows good thermodynamic property.The ASTM test of use standard, finds that for example, the heat transmission of this constructional materials is less 20 ℃ than dry wall plate under identical test condition (, time and temperature).Test shows, compares with the dry wall plate that absorbs about .54 BTU, and this constructional materials absorbs about .11 BTU.Thus, use the core matrix based on microballon to improve heat capacity, material absorb heat number.Found with for 1/2 inch panel for the dry wall plate of .45 compare the thermal resistance of identical constructional materials or R value for 1/2 inch panel between 2 and 3.
Also find that above-mentioned identical constructional materials is lighter approximately between 20% to 30% than dry wall plate.For example, the heavily about 39lbs of 4 * 8 panels, the by contrast similar great about 51lbs of dry wall plate panel of size.The great about 80lbs of 4 * 12 dry wall plate panel, the by contrast heavily about 60lbs of wallboard building material of the present invention.
Except weight is lighter, also find that identical constructional materials is than dry wall plate firm 10% to 20%.In one example, various tests show that this constructional materials will rupture in bending strength test between 170lbs and 180lbs.By contrast, dry wall plate is conventionally in the fracture of 107lbs left and right.The panel using in these tests has suitable size and thickness.In edge hardness test, the average of this constructional materials is about 15lbf, and test out dry wall plate, is 11lbf.Be in one's hands in nail test, the average that tests out this constructional materials is 99lbf, and test out gypsum plank, is 77lbf.
Constructional materials of the present invention also can comprise rigid material or strengthening part, and it is configured to compare with the exemplary constructional materials of Fig. 1 and Fig. 2 the feature that raising is provided in one or more regions.In one exemplary embodiment, this constructional materials can comprise and is arranged in core matrix (being folded in wherein) or at the external surface of core matrix and the rigid material between finish material.This rigid material can be configured to strengthen or improve one or more characteristic or the feature of constructional materials.For example, this rigid material can be configured to strengthen to transaudient, conduct heat or their opposing (or improving impedance) of combination.This rigid material also can be configured to improve the bulk strength of constructional materials.Rigid material can comprise various types of materials, such as metal, weaving or non-woven fibre or fiberboard, plastic foil etc., and can have the thickness of any necessity.
The present invention is also provided for using sound trap to improve the system and method through the noise minimizing of partition wall.This sound trap can be by being arranged in constructional materials of the present invention building structure as column or the formation around of other wall, and wherein relative constructional materials forms the significantly minimizing that is configured to absorb sound also through the transaudient sound trap of this wall.In this configuration, relative exposed surface will be positioned to face one another.Acoustic attenuation system can be formed by the constructional materials of the present invention with the multiple suitable location of multiple configuration.Thus, at this special material proposing, be not intended to be limited by any way.
Generally speaking, the sound wave that enters sound trap is had the relevant constructional materials of different acoustical reflection degree decays, and depends on the configuration of sound trap and the constructional materials using.As mentioned above, the exposed surface of core matrix has greatly improved the acoustic attenuation characteristic of constructional materials.The sound wave of impact on exposed surface compares with the constructional materials that lacks this exposed surface the acoustical reflection that is minimizing.As a result, the material that sound wave is included the core matrix of constructional materials more effectively absorbs and decays.For the constructional materials with exposure around sound trap for, by all constructional materialss in sound trap, increase acoustic attenuations.For adopting first constructional materials in a side with exposure for thering is the sound trap of the second constructional materials of the finish material relative with the exposure of the first constructional materials, sound can mainly be decayed by the exposure of the first constructional materials, and the finish material of the second constructional materials is used for acoustic reflection in the exposure of the first constructional materials.Therefore,, for two kinds of configurations, sound wave is trapped and effective attenuation between constructional materials.
In an optional embodiment, can use two kinds of facing constructional materials panels to form sound trap, each panel all comprises two the core host materials between the veneer material bed of material that are sandwiched between as described herein.The veneer material bed of material can be made by various materials, as described in literary composition, and for example paper, cloth, metal and metal alloy, polymeric material and their combination.
With reference to Fig. 3, show the acoustic attenuation system 200 according to one exemplary embodiment of the present invention, wherein this acoustic attenuation system forms and limits outside partition wall 204.This acoustic attenuation system 200 and outside partition wall 204 comprise and be supported on building structure as the first side of outside stud wall (not shown) the first constructional materials 210 around, and the second side that is supported on the building structure relative with the first constructional materials 210 the second constructional materials 310 around.In this case, the second constructional materials is the shear panels with rigid material disposed therein.According to embodiment well known in the art, the first and second constructional materialss are supported or are installed in building structure.
The first constructional materials 210 comprises wallboard panel, and has and be arranged in facing barrier film 234 core matrix 214 around, and a side 218 of core matrix exposes, or at least substantially exposes.The exposed side 218 of core matrix is towards inner side, and is arranged to lean against on the member that forms stud wall, and facing barrier film 234 is towards outside.The second constructional materials 310 comprises shear panels, and has the core matrix 314 being arranged between the first facing barrier film 334 being formed as aluminium by metal and the second facing barrier film 354 being formed by paper material.Alternatively, wallboard building material 210 and/or shear panels constructional materials 310 can comprise the rigid material 374 between the core matrix 314 that is interposed in shear panels constructional materials 310.
After being arranged on stud wall under this configuration, wallboard building material 210 and shear panels constructional materials 310 are used to provide and limit space or the sound trap 284 of certain volume jointly, between the inner surface of its every kind of constructional materials in building structure, extend.This sound trap be intended to stop sound wave along any direction through partition wall 204 transmission, because under the help of the exposure rough surface 218 of wallboard building material 210, these sound wave core matrix 214 more effectively absorb.Coming from sound wave indoor and that propagate towards shear panels constructional materials 310 through wallboard building material 210 is partially absorbed by shear panels constructional materials 310 and part reflection.The sound wave of those deflections is propagated towards the exposed side 218 of the core matrix 214 of wallboard building material 210, and wherein they run into the surface of coarse, the porous of exposed side 218.Because this is coarse, the configuration of porous, most of sound is absorbed in core matrix and is attenuated.The core matrix 314 of shear panels constructional materials 310 also contributes to absorption and the decay of sound.Thus, the outside partition wall forming with OSB material with dry wall plate by conventional is compared, and acoustic attenuation system 200 and particularly partition wall 204 provide higher STC and OITC grade.To increasing isolation part in partition wall of the present invention, can make STC compare further raising with OITC grade with the partition wall of dry wall plate, OSB and interlayer.
Fig. 4 illustrates the acoustic attenuation system 400 according to one exemplary embodiment of the present invention, and wherein this acoustic attenuation system forms and limit inner partition wall 404.This acoustic attenuation system 400 and inner partition wall 404 comprise and are supported on building structure as the first side of internal upright wall (not shown) the first constructional materials 410 around, and the second side that is supported on the building structure relative with the first constructional materials 410 the second constructional materials 510 around, thereby limit sound trap 484.The first constructional materials 410 is similar to the first constructional materials 210 of Fig. 3, and its above description is incorporated into this.The second constructional materials 510 is also similar to the first constructional materials 210 of Fig. 3, but difference is wallboard building material 510, comprises the core matrix 514 being arranged between the first decoration panel 534 and the second decoration panel 554.In other words, the side of the core matrix 514 of the second constructional materials 510 not exposes, but capped.The sound absorption of acoustic attenuation system 400 and attenuation characteristic improve by penetrating the sound wave direct and deflection of the exposed side 418 of the first wallboard building material 410, wherein their core matrix 414 bufferings absorption at least partly, and sound wave is trapped within sound trap 484.
Fig. 5 illustrates the acoustic attenuation system 600 according to one exemplary embodiment of the present invention, and wherein this acoustic attenuation system 600 also forms and limit inner partition wall 604.This acoustic attenuation system 600 and inner partition wall 604 comprise and are supported on building structure as the first side of internal upright wall (not shown) the first constructional materials 610 around, and the second side that is supported on the building structure relative with the first material 610 the second constructional materials 1710 around, thereby limit sound trap 684.The first constructional materials 610 and the second constructional materials 1710 are similar each other, comprise respectively core matrix 614 and 1714, and have respectively exposed side 618 and 1718.Two exposed side 618 and 1718 all operate to receive and absorption sound, thereby quite a few sound wave is trapped in sound trap 684, and prevent that them from spreading out of sound trap 684.Thus, this acoustic attenuation system comprises than the obvious higher STC rank of the partition wall of standard dry wall plate.
In above each exemplary acoustic attenuation system, sound is designed to penetrate skin or the barrier film of various constructional materialss and be trapped within the sound trap of formation, thereby has obviously reduced and passed the transaudient of partition wall, no matter partition wall is interior wall or exterior wall.It should be noted in the discussion above that this sound trap also can form and be limited to around ceiling or any other separator, as persons skilled in the art will recognize that.At least one the exposed side that the sound wave that enters sound trap is acted on and penetrated by them in constructional materials is attenuated.The surface coarse, porous of the core matrix exposing is used for reducing deflection and the transmission of sound wave, and core matrix overall operation is to absorb at least partly and the undeflected sound wave of damping.The thickness of the core matrix of constructional materials will affect noise reduction or transaudient characteristic, and the composition of core matrix, density and configuration are too.
It is contemplated that, any combination of constructional materials of the present invention can be used on the either side of building structure and limits a sound trap, comprises and is incorporated to by reference disclosed various embodiment in application herein.In addition, it is contemplated that, constructional materials of the present invention can be according to being incorporated to the content manufacture of instructing in application herein.
In some aspects, core matrix can be configured to further improve the acoustic attenuation characteristic of constructional materials.On the one hand, constructional materials of the present invention comprises that exposure or exposed side are to provide surface coarse, porous.In addition, constructional materials of the present invention comprises the core stromal surface of the exposure with the many protrusion surfaces configuration being formed at wherein.
As shown in Figure 6, constructional materials 710 is for being similar to the panel-form of wallboard panel, has wide approximately 4 feet, to be about 8 feet and thick approximately 1/2 inch size, and this size is identical with the wallboard product of most conventional.Certainly, can consider that 4 feet are taken advantage of other size outside the size of 8 feet, and different thickness.Near shown constructional materials 710 comprises core matrix 714, and it is arranged in single decoration panel or finish coat---being finish material 734---.The opposite side 718 of core matrix 714 exposes, thereby exposes a part for the configuration of particulate and adhesive.The exposed surface of core matrix provides and defines surface one coarse, porous, and this surface design is for attenuate sound better.On the one hand, in the time of on constructional materials being installed or be assembled to such as the works of stud wall, should make the exposed side 718 of core matrix 714 towards inner side, and facing barrier film 734 is towards outside.On the other hand, when constructional materials is installed or is assembled on works, the exposed side 718 of core matrix 714 should be towards outside, and facing barrier film 734 is towards inner side.
The exposed side 718 that Fig. 6 also illustrates core matrix comprises the surface configuration of projection more than.Provide near the object of the many protrusion surfaces configuration forming surface, especially an exposed surface of core matrix to have 2 points at least: 1) further to strengthen significantly acoustic attenuation or the damping characteristic of constructional materials, guarantee sound insulation and sound absorption in a very wide frequency range; 2) by eliminating shear line, strengthen the flexural strength of constructional materials.As will be described below, at the many different many protrusion surfaces configurations of this imagination.Person of skill in the art will appreciate that a series of peak and paddy are set is from the teeth outwards positioned at the different surfaces of differing heights and with benefit, the especially benefit to the specific purpose of attenuate sound of the different surfaces of different gradient orientations to form.Being incident on these height and/or directed different lip-deep sound wave is more effectively decayed.
Shown in specific embodiment in, the surface configuration of many projections has with the grid pattern of a large amount of ledges 718 (waffle pattern), ledge 718 has square or rectangular cross section and limits a large amount of recesses 726.This series of peak and paddy effectively form the exhibiting high surface (being horizontal surface 730 and 734 in this example) that is arranged in differing heights on the whole surface of core matrix 714.In addition, ledge 718 can be configured to provide the surface with different angles orientation (in this example, ledge 718 also limits the surface 738 of several vertical orientations).
Also imagine on many protrusion surfaces of the exposure of core matrix 714 and can arrange or not arrange independent netted decoration panel.If use netted decoration panel, netted decoration panel is preferably configured as and has flexibility with consistent with the surface configuration of many projections.
Fig. 6 and Figure 14 further illustrate constructional materials 710 and comprise a large amount of cavitys or air pocket 746, described cavity or air pocket spread all over core matrix 714 and strategically form and locate, and are designed to reduce the gross weight of constructional materials and intensity or other characteristic that can significantly not affect constructional materials.Preferably, cavity 746 is random position in whole core matrix 714, but cavity also can be arranged to a predetermined pattern.Cavity 746 can form according to any known method during the manufacture of constructional materials.In essence, the effect of cavity 746 is with different positions, to limit a large amount of cavities or air pocket in core matrix 714.The size of cavity 746 can be set for has about 0.2cm 3to about 200cm 3volume, preferred about 5cm 3to about 130cm 3volume.These not only contribute to weight reduction, and because still air/dacker space contributes to increase whole R value.In addition, these contribute to further attenuate sound, because these provide and have been used for absorbing sound wave but not transmit their additional surface.
With reference to Fig. 7-A and Fig. 7-B, show the constructional materials that another exemplary embodiment according to the present invention forms.Constructional materials 810 is in many aspects to above-mentioned similar with the constructional materials 810 shown in Fig. 6.Yet constructional materials 810 comprises arranges or is interposed in the lath 854 in core matrix 814.Lath 854 comprises a large amount of cross sections 856 that form grid, and described grid has a large amount of openings 858.The effect of lath 854 is to provide support and stability and intensity that enhancing is provided for core matrix 814.In addition, lath 854 has increased the quality of constructional materials 810, and this point has reduced the possibility of vibration, therefore contributes to the acoustic attenuation characteristic of constructional materials 810.Lath 854 can comprise many different types and configuration, and wherein grid and opening are of different sizes and configuration.Lath 854 shown in Fig. 7 is not intended to limit by any way.
On the one hand, lath 854 can comprise metal, glass fiber or plastic wire or Web materials.This stiffener material provides intensity for constructional materials 810, and further supports microballon.According to concrete application and needs, lath 854 also can for example, be made by glass, plastics (, extrusion plastic) or other material.
With reference to Fig. 8-10, show the constructional materials 910 that another exemplary embodiment according to the present invention forms.In this embodiment, constructional materials 910 comprises the core matrix 914 with first surface 918.In first surface 918, be formed with many projections or nonplanar surface configuration, the pillow projection pattern of the form of this surface configuration for repeating, thus with a plurality of different projections, provide a plurality of different surfaces or surf zone.Protuberance can have size, configuration and the height of any hope.Therefore shown in figure, be, only exemplary.
With reference to Figure 11, illustrate the lateral view of the constructional materials 710 of Fig. 6, this constructional materials 710 has form for many protrusion surfaces configuration of the grid pattern of repetition.The configuration of grid-like extends between the periphery of constructional materials, and limits a large amount of protuberance 722 and recess 726.Figure 14 illustrates the sectional drawing of constructional materials, and wherein constructional materials 710 comprises cavity or the cavity 746 that strategically forms and be positioned in a large number in core matrix 714.
Figure 12 illustrates the detailed side view of another kind of exemplary constructional materials 1010, this constructional materials 1010 comprises the core matrix 1014 with first surface 1018, wherein in first surface 1018, be formed with the surface configuration of many projections, the surface configuration of these many projections comprises that form is the repeat patterns of the first protuberance 1022 of rib vertebra or circular cone, and the repeat patterns with the second protuberance 1024 of arbitrary shape.Show the second protuberance 1024 and comprise the secondary protuberance 1025 of main base portion protuberance, upper secondary protuberance 1023 and sidepiece with square cross section, all there is rib vertebra or cone shape.The first protuberance 1022 and the second protuberance 1024 limit recess 1026.Although the present invention is not intended to be confined to the protuberance of any given shape, Figure 12 shows that arbitrary shape all at least can be susceptible to.
Figure 13 illustrates the detailed side view of another kind of exemplary constructional materials 1110, this constructional materials 1110 comprises the core matrix 1114 with first surface 1118, wherein in first surface 1118, be formed with many protrusion surfaces configuration, this many protrusion surfaces configuration comprises the repeat patterns of the first protuberance 1122 and recess 1126, and wherein these protuberances and recess form the pattern of egg packaging boxlike (egg carton-type).
Therefore Fig. 8-13 illustrate several different many protrusion surfaces configurations.Yet these should not limit by any way.In fact, those skilled in the art can expect can be used to realize other configuration and/or the pattern of design of the present invention.
Example
Following example illustrates current known embodiments of the invention.Therefore, these examples should not be considered as restriction of the present invention, and are only suitable for composition and the form of the present invention based on current experimental data that how instruction makes best understanding.In addition, at this, comprise that some test data of experiment are to provide the guidance to optimal combination thing and Applied Materials form.Thus, at this, composition of representational number and their manufacture method are disclosed.
example 1-floats the test of the Applied Materials of pearl and silicate of soda
By Extendospheres tMthe pearl mixture that floats of form is combined with silicate of soda and allows it to be dried and form fire prevention isolated material.By diameter dimension scope, be that the Extendospheres of 300-600 micron is with part by weight and sodium silicate solution (the O type of Pq Corp.) combination of 1:1.Wet pulp is injected to cavity around of turbine and allowed it dry.It forms the lump of Extendospheres and silicate of soda.Use Ipro-Tek single-rotor gas turbine to test this material.Test shows that this material has high isolating power and temperature capacity.Interlayer is exposed to the temperature up to 1200 ℃.Yet, find that material ftractures and bubbles and start to lose physical strength when material being directly exposed to flame and surpassing the cycle of a few minutes.
example 2-is in order to form the formation of the mould of wallboard
On the one hand, Applied Materials can be wallboard panel.Panel optionally forms by uncured wallboard is exposed to microwave.The formation of this type of formation and common wallboard can utilize mould.The example of mould can be comprised of the vinyl ester resin mould with overhead and bottom member.In order to form vinyl ester resin mould, first build wooden model.
In order to form vinyl ester resin mould, use two-sided tape that one outer wooden model is attached on wooden model base portion.Alternately use any releasable adhesive or attachment structures.Resin compound is formed by the vinyl ester resin of the 97.5wt% of the methyl ethyl ketone peroxide with 2.5wt% (MEKP) catalyst mix.With the ratio of 1:1, add microballon and the resin compound of Extendospheres form, to form core mixture.Use is arranged on the mixing plant in a rig mixing plant of compo---as be used for---mixed core mixture well.Incorporation time is about 3 minutes.Core mixture is injected in ready wooden model and is allocated to the whole mould of covering and comprises all corners.Although be not to be pressed in mould, use short distance drippage, hand, mechanical oscillation and spreading instrument, leniently make mixture level and smooth as perching knife.Mixture is not pressed in wooden model, thereby because the porosity that can reduce the vinyl ester resin mould obtaining to its pressurization can make it unavailable.Mixture at room temperature solidifies until it is hard and firm when contact.Conventionally be about three hours hardening time.Then take off carefully porous ethylene base ester resin die.The vinyl ester resin mould obtaining has 11.625 inches * 15.25 inches * 0.5 inch dark cavity, in outer rim, has the wall of 0.375 inch around.Use identical method to form the overhead of vinyl ester resin mould, and form mould in being of a size of 12.375 inches * 16 inches * 0.5 inch dark rectangle.
example 3-is used mould to prepare wallboard
As mentioned above, the form of Applied Materials can be wallboard panel.Panel is optionally by being used porous ethylene base ester resin die to form.First, use lining paper template to cut wallboard lining paper.Although show specific lining paper shape, be to be understood that lining paper can have any shape or the size that is enough to form one section of wallboard.Finishing paper is cut into the rectangle that size is just less than the large-size of lining paper.In the present embodiment, finishing paper is cut into the rectangle of 11.625 inches * 15.25 inches.Folding lining paper is also placed in porous mold.Can use following material to form wallboard mixture:
700g is to 900g microballon;
1100g is to 1300g sodium silicate solution, the sodium silicate solution of for example selling with " O ";
300g is to 500g latex adhesive;
20cc is to 30cc blowing agent.
Particularly, first blowing agent added in sodium silicate solution and use the squirrel-cage blender (squirrel mixer) of 540RPM to mix 2 minutes.Latex adhesive is added in mixture and with identical setting and mixed for 30 seconds again.When mixing, slowly add microballon more than 1 to 2 minute, until mixture is even.
Wallboard mixture is injected to lining mould and use perching knife or paint stick (paint stick) makes it to flatten.It should be pointed out that at this moment and can carry out smooth mixture by any instrument or method.By the next further leveling mixture that shakes of exerting oneself.Facing cardboard is placed in the top of mixture, and is covered by the top panel of vinyl ester resin mould.Mould is placed in to microwave, and with the time quantum radiant panel of hope.Preferably, often rotate mould so that panel is drier.Should not make panel in any long time quantum, be subject to continuous radiation with minimizing or stop large cavity in wallboard core.Can set the power level of microwave to control the time quantum of microwave unlatching.The time of microwave opening and closing can be according to table 1:
Table 1
Power level Opening time (second) Shut-in time (second)
1 3 19
2 5 17
3 7 15
4 9 13
5 11 11
6 13 9
7 15
8 17 5
9 19 3
10 22 0
Once suitably be heated, just can be taken out from mould the wallboard panel obtaining carefully.
example 4-bending strength test
A flexural strength that key character is plate of wallboard.The core host material that comprises table 2 ingredients listed by formation, is distributed in mould cavity by mixture and makes it smooth each sample panel of preparing.Thick 0.50 inch of the sample obtaining, wide 2 inches.Each sample is dry until determine dry by Aquant hygrometer in the stove in 100 ℃.Sample is suspended between two support members that separate 6 inches 1-1.5 inch is shelved on the either side of support member.By the paint can of quart sized be placed in hang the center of sample and slowly water filling until sample fracture, at this (fractureing) point measurement and record the weight of tank.Flexural strength is important for conventional processing, installation and use.For the purposes of the gypsum wallboard of the alternative routine of its deadlight, wish that intensity at least equals the intensity of gypsum wallboard.Each wallboard comprises different components as listed in table 2.
Table 2
By the combination of components in each row then machinery beat to produce a foamed product.Then in mould, make this foamed product moulding.The adhesive of all uses is silicate of soda based adhesive.O type adhesive is the viscous sodium silicate solution from Pq Corp..RU type adhesive is also from Pq Corp. and be sodium silicate solution similar with O type but that viscosity is so not strong.RU type moisture more, there is lower solid content.BW-50 type adhesive is also from Pq Corp..BW-50 is also sodium silicate solution, and wherein silica is lower with oxidation disodium (disodium oxide) ratio.As shown in Table, can optimize the amount of adhesive and type to form the flexural strength of wide region.
example 5-bending strength test II
At seven according to carrying out bending strength test in the sample panel of the listed step of example 4.The composition of each sample panel and bending strength test weight record are in table 3.
Table 3
As shown in Table, increasing binder content in sample rate and increase sample makes sample strength higher conventionally.The content that increases water in sample mixture conventionally reduces the density of mixture and causes the strength decreased of sample.In comprising the sample of the test that utilizes Manila folder and/or cardboard, described material is placed on the both sides of sample.In core material, by paper product side joint in the situation that, this type of setting equals to conventional gypsum wallboard.As shown in Table,---either side be all shown in Manila folder or cardboard form---significantly increased the intensity of sample on both sides, to comprise cardboard.
example 6-bending strength test III
According to method listed in example 4, form the sample panel of some, the paper tape of different is described thickness is that 2 inches of wide * 11 are inch long.Before injecting core host material, a slice paper tape is placed in to mould cavity.After injection smooth mixture, another sheet paper tape that thickness is identical is placed on the top of mixture.With wire gauze covering mixture and force down so that it is during drying held in place.For following listed result, paper can suitably not adhere in core matrix, so test result has reflected the only attached sample that has a slice paper.The in the situation that of under paper side direction, carry out bending strength test.Infer and comprise that the sample result of two decoration panels should be higher.
The core host material of each sample comprises 250g Extendospheres, 40g water, 220g adhesive, 10g blowing agent.The dry weight of each sample is 334.9.For thickness, be 0.009 " paper, the weight that fractures is 6.6kg.For thickness, be 0.015 " paper, the weight that fractures is 7.5kg.For thickness, be 0.020 " paper, the weight that fractures is 5.2kg.
the additional testing of example 7-to sample panel
According to listed method and composition in above-mentioned example, form the sample panel of some.Conventionally, mixture, if mixture given above is in die for molding, this mould comprises and is arranged in the paper of core above and below and around the framework of sample circumference, with dry at mixture and hold wet core material when curing.After dry and heating wallboard sample, can test its mechanical property.The composition of each sample and correlated results are shown in table 4.
Bending strength test-" bending "
By 2 inches of wide * 6 to 8 inches long, thickness is that the sample of 0.5 inch is placed on test fixing device, make it to be suspended between two supporting legs.Two supporting legs separate approximately 4.25 inches.Testing equipment is equipped with crooked test annex, and the bar on annex is parallel to test specimen location.Anti-bending test annex is centered in the mid point between two supporting legs of test fixing device.One can hook is hung on the end of testing equipment, slowly increase the weight of bucket until test sample fails.Measure the weight of bucket to obtain bending resistance result.
Hold nail strength test
On inch sample long, that thickness is 0.5 of 6 inches of wide * 6, boring to be formed centrally one 5/32 inches of pilot holes in sample.Sample is placed in and is held on nail fixing device, and the diameter that pilot hole centering is in one's hands in nail fixing device is on the hole of 2.5 inches.One nail is inserted in pilot hole.The diameter of nail shank should be approximately 0.146 inch, and the diameter of nail head should be approximately 0.330 inch.Screw rod is inserted in the indicator hole in testing equipment and makes it stretch out the distance of approximately 2 inches.Screw head should be less than the head of the nail using in test.Sample and fastening devices are positioned to the center line alignment that equipment below makes nail and screw rod.One can hook is hung on the end of testing equipment.Slowly increase the weight of bucket until test sample book inefficacy.Measure the weight of bucket.
Solidify, end and edge hardness test
By 2 inches of wide * 6 to 8 inches long, thickness is that the sample clamping of 0.5 inch is on the fixture of testing equipment.Screw rod is inserted in the indicator hole in testing equipment and makes it stretch out the distance of approximately 1.5 inches.The diameter of screw head should be 0.235 inch.Below testing equipment, screw head is centered on 0.5 inch of edge of sample fixture and Sample location.One can hook is hung on the end of testing equipment.Slowly increase the weight of bucket until screw rod thrusts in sample at least 0.5 inch.If screw rod is from sidepiece landing and tear and wear paper, abandon this sample retest.
Table 4
example 8-test result II
Wallboard sample comprises 50g Extendospheres and 2cc surfactant.The first wallboard of testing comprises the sodium silicate binder mixture of 100g.The second wallboard of testing comprises 75g sodium silicate binder mixture and 25g latex adhesive.The thickness range of test board is from 0.386 inch to 0.671 inch.Test completes according to ASTM 473-3,423, E119 and D3273-00 standard.
Based on three samples, for the first wallboard test and definite flexural strength are average 170lbf (in white side direction).Based on three samples, find that the second wallboard is under average 101lbf(white side direction).The highest measurement result of six test samples is 197lbf.Conventional gypsum wallboard is as a comparison 107lbf.
Determine that edge hardness is average 15lbf.The average minimum edge hardness of gypsum wallboard is 11lbf.Sample demonstrates the raising of comparing 36% with gypsum samples.
Average based on 3 samples, measurement hold nail intensity be 99lbf.On the other hand, measure gypsum wallboard hold nail intensity be 77lbf.
Tested the thermal resistance of sample wallboard.Wallboard one side is raised to 100 ℃ and continues two hours, and does not occur at the cold side of sample the temperature rise that can survey.
Example weight and conventional gypsum are contrasted, find that sample is lighter by approximately 30% than gypsum plank.
example 9-wall board forming
Another example as wall board forming, forms silicate of soda wallboard by following steps.First by add the Steol FS 406 of 2cc in 100g sodium silicate solution (O of Pq Corp. type adhesive), make silicate of soda foaming.It is the container for paint of 6 inches that mixture is placed in to diameter." Squirrel(squirrel-cage) " blender carrys out blend mixture to use one, and this blender is attached to take drilling machine, the diameter of 540rpm operation and be 3 inches.Operator rotates container for paint along the direction of the direction of rotation with blender.Mixture is foamed approximately one minute and 15 seconds.The volume of silicate of soda at least doubles during foaming process.By the Extendospheres of 50g tM(having the size of 300 microns to 600 microns) adds in mixture, and mixes one minute with " Squirrel " blender again.Then finished product mixture be injected in mould and make it smooth with painting charge bar.
Once the mixture of foaming is flattened in mould, just mould is placed in to the stove that is set in 85 ℃.Allow mixture to be dried approximately 12 hours at this temperature.
After core is fully dry, lining paper is added on core.Thin silicate of soda coating is coated in to the back side of paper, and paper is placed in core matrix.Core and paper are all covered by polyester gas permeable material in all sides, are then placed in a vacuum bag.Vacuum bag is placed in to the stove that is set in 85 ℃, to this parts effect vacuum.Allow these parts to be dried 45 minutes to one hour in stove.Then from stove, take out component end item and be trimmed to the size of hope.Optionally to adding various materials in core composition, be dried accelerating.
example 10-wall board forming II
According to the method in example 9, produce another wallboard.The change part of the composition of wallboard is to use sodium silicate binder solution and the 25g organic bond of 75g.Before foaming, organic bond is added in sodium silicate binder solution together with Steol.
example 11-wall board forming III
By first hiding mould, produce another wallboard.With FEP lining one substrate.FEP is packed tightly to reduce lip-deep wrinkle.Fringeware (boarder piece) with Blue Flash Tape coating mould.Using Killer Red Tape that fringeware is attached to base member take and form the border that inside dimension is 14 inches * 18 inches.
Measure and reserve 500g microballon (being of a size of 300-600 micron), 750g " O " type adhesive, 250g organic bond and 20cc blowing agent.Use the Squirrel blender mixing O type adhesive of 540 RPM and blowing agent approximately 2 minutes.Add organic bond to mixture and mixed again for 30 seconds.When mixing, slowly add microballon.When all microballons have all added, mixture is mixed to 30 seconds again or until mixture is even.Mixture is injected to mould and utilize perching knife to make it smooth.Effectively shake again mould further smooth to carry out.The stove that mould is placed in to 100 ℃ is dried 12 to 18 hours until finish-drying.A slice lining paper and a slice finishing paper that by first cutting, are a bit larger tham panel are attached to paper on sample.Uniform sodium silicate solution coating is coated to a side of paper.Paper is placed on the end face and bottom surface of panel, exerts pressure equably from the teeth outwards.Can optionally exert pressure by packed this panel in vacuum ground.Panel can be put back in the stove of 100 ℃ to approximately 15 minutes until paper adheres to the surface of panel completely.
example 12-sound trap acoustical testing
With configuration as described herein structure contrast sound trap, the equal fine-grained core matrix of tool in adhesive of the first and second constructional materialss wherein, on the both sides of the first and second constructional materialss all with finish material.Similarly under configuration, constructing test sound trap, but wherein the first constructional materials lacks finish material in the side towards the second constructional materials.By two sound traps, further test is as follows:
Each sound trap is placed in to a sound attenuation room, and speaker phone is in a side of sound trap, and sound pressure meter is positioned on the opposite side of sound trap.By scope, being 110Hz sequentially transmits towards sound trap from speaker phone at about 100dB to a series of tones of 8000Hz, and records sound pressure level on the opposite side of sound trap.For contrast sound trap, for 110Hz, to the average sound pressure level of the tone of 8000Hz, be about 58.5dB.For test sound trap, for 110Hz, to the average sound pressure level of the tone of 8000Hz, be about 51.5dB.Therefore, from one of constructional materials parts remove finishing paper cause crossing over sound trap approximately 7.0dB sound falls.
With reference to concrete exemplary embodiment, the present invention will be described in above-mentioned detailed description.Yet should be appreciated that not deviating under the prerequisite of the scope of the present invention as illustrated in claims, can make various modification and change.It is illustrative and nonrestrictive the detailed description and the accompanying drawings should being considered as, all these type of modification and change (if present) all should fall within this description and the scope of the present invention illustrated in.
More specifically, although described illustrative exemplary embodiment of the present invention at this, but the present invention is not limited to these embodiment, but comprise that those skilled in the art can expect based on foregoing detailed description there is modification, omission, for example, in conjunction with the combination of the aspect of each embodiment (, across), adapt to and/or any or all embodiment of change.Restriction in claim should broadly explain by the language based on adopting in claim, and be not limited to foregoing detailed description or the application the term of execution described in example, will be understood that these examples are non-exclusive.For example, in the present invention, term " preferably " is non-exclusive, and wherein this term is intended to represent the meaning of " preferably, but be not limited to ".Any step cited in any method or technique claim can be carried out with any order, and is not limited to the order proposing in the claims.The restriction of device+function or step-plus-function will only adopt under these circumstances, in specific claim limits, have all following conditions: a) clearly stated " for ... device " or " for ... step "; And b) clearly stated corresponding function.Structure, material or the action of in description herein, clearly having stated supportive device+function.Therefore, scope of the present invention should only be determined by claims and their legal equivalent, rather than be determined by the description providing above and example.
The content of prescription and the protection of expectation patent certificate is:

Claims (14)

1. a sound attenutation building material, is characterized in that, described sound attenutation building material comprises:
Be arranged on the core matrix between the first finish material and the second finish material, described core matrix comprises:
A large amount of particulates, the amount of described particulate is by weight between 25% and 60%, and wherein each particulate has the inside of external surface and hollow, and average-size is between 10 microns and 1500 microns; And
Be configured to support the sodium silicate binder of described particulate, the amount of described adhesive is by weight between 40% and 60%.
2. according to the sound attenutation building material of claim 1, it is characterized in that, described core matrix also comprises by weight the organic bond between 2% to 6%.
3. according to the sound attenutation building material of claim 1, it is characterized in that, described particulate is filled with inert gas.
4. according to the sound attenutation building material of claim 1, it is characterized in that, described particulate is made by flying dust.
5. according to the sound attenutation building material of claim 1, also comprise the rigid material being associated with described core matrix.
6. according to the sound attenutation building material of claim 5, it is characterized in that, described rigid material is arranged in described core matrix.
7. for using a system for constructional materials attenuate sound, it is characterized in that, described system comprises:
The first constructional materials;
The second constructional materials, described the second constructional materials is arranged in the orientation substantially parallel with described the first constructional materials and makes described the first constructional materials and described the second constructional materials separate certain distance to form sound trap space;
Wherein, described the first constructional materials and described the second constructional materials comprise the core matrix being arranged between the first finish material and the second finish material, and described core matrix comprises:
A large amount of particulates, the amount of described particulate is by weight between 25% and 60%, and wherein each particulate has the inside of external surface and hollow, and average-size is between 10 microns and 1500 microns; And
Be configured to support the sodium silicate binder of described particulate, the amount of described adhesive is by weight between 40% and 60%.
8. according to the system of claim 7, it is characterized in that, described core matrix also comprises by weight the organic bond between 2% to 6%.
9. according to the system of claim 7, also comprise the building structure that is positioned at described sound trap space.
10. according to the system of claim 9, it is characterized in that, the first side that described the first constructional materials is supported on described building structure around and described the second constructional materials be supported on around the second side of described building structure.
11. according to the system of claim 7, it is characterized in that, described the first constructional materials, described the second constructional materials and described building structure form partition wall.
12. according to the system of claim 7, it is characterized in that, also comprises the interlayer material in the described sound trap being arranged between described the first constructional materials and described the second constructional materials.
13. according to the system of claim 7, it is characterized in that, at least one in described the first constructional materials or described the second constructional materials also comprises the rigid material being associated with described core matrix.
14. according to the system of claim 13, it is characterized in that, described rigid material is arranged in described core matrix.
CN201210154074.1A 2008-03-21 2008-09-25 Sound attenuation building material and system Expired - Fee Related CN102767245B (en)

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US12/077,951 US20090004459A1 (en) 2007-03-21 2008-03-21 Utility materials incorporating a microparticle matrix
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US61/081,949 2008-07-18
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